Explanatory notes
… residues 2844.50 ‑ Spent (irradiated) fuel elements (cartridges) of nuclear reactors (I) ISOTOPES The nuclei of … becomes radioactive. (2) Spent (irradiated) fuel elements (cartridges), generally very highly radioactive, mainly used … in heading 84.01 . (4) Spent or irradiated fuel elements (cartridges), that is, those which, after more or less …